application scope
Selective well plugging is mainly applied to oil wells where water is mixed into the reservoir due to side, bottom or inter-layer water and is extracted together with the recovery pipeline. The selective plugging of the water layer or water point of the well reduces the water content of the recovery fluid and increases the production capacity and oil recovery efficiency of a single well.
technical characteristics
1、Selective water plugging, plugging water not oil;
2、No pollution to the stratum, effectively protect the oil layer and prevent pollution of the oil layer;
3、Good temperature and salt resistance, can effectively overcome the high temperature and high salt conditions blocking failure;
4、Simple and effective injection process;
5、High compressive strength, strong seepage resistance and high blocking rate.
technical advantage
1、Summarize the experience of selective water plugging construction measures for oil wells, forming a complete set of theoretical experience and process, with a high success rate of plugging;
2、With a set of oil well water plugging agent with independent property rights, we can select suitable plugging agent for construction according to the conditions of the mine site, which greatly improves the plugging efficiency and success rate;
3、According to the mine conditions and requirements, we can combine oil well water plugging with water well dissection to effectively improve the efficiency of water plugging. Our company has promoted and applied 200 wells in major oilfields, with an efficiency of over 80% of the measures, an average single well water content reduction of 37.5%, and a cumulative oil increase of over 80,000 tonnes.
